September Challenge 2019 Division 2
Easy Fibonacci, Chef Designed a Network, Chef and Interesting Subsequences , Chef and Good Subsequences
October Challenge 2019 Division 2
Even Edges, Chef and Maximum Star Value, Array Modification, Operations on a Matrix, Phone Prices
December Challenge 2019 Division 2
Plus Multiply, Addition, That Is My Score!, Sticky Notes, Easy Subsequence Selection, Binary XOR
April Challenge 2020 Division 2
COVID Pandemic and Long Queue, Leaked Answers (Challenge), Sell All the Cars, Ready Bitwise, Squared Subsequences, Strange Number, Unit GCD
May Challenge 2020 Division 1
Buying a New String, Triple Sort, Sorting Vases, Chef and Bitwise Product
July Challenge 2020 Division 1
Chefina and Swaps, Chef and Strings, Chef and Card Game, Doctor Chef, Missing a Point
July Cook-Off 2020 Division 1
Even-tual Reduction, OR-thodox Distinction
September Lunchtime 2021 Division 2
Interesting Representation, Balanced and Unique Arrays, Alice vs Bob Faceoff, Yet another SOD problem
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